have to agree with nostr:nprofile1qqsr9cvzwc652r4m83d86ykplrnm9dg5gwdvzzn8ameanlvut35wy3gpzpmhxue69uhkummnw3ezuamfdejsz9thwden5te0wfjkccte9ekk7um5wgh8qatzqyt8wumn8ghj7un9d3shjtnswf5k6ctv9ehx2aq38qmrf on this one
Discussion
An interesting history: BlackBerry, the creator of Push Notifications, did sell the BlackBerry Enterprise Server that would run inside the NAT and open connections directly to phones. Outside of enterprise service, the phone has to make the connection to their server as it happens today.
first pull, then subsequently push (and when network changes, repeat).
this is a mouthful though, so they just say the one that sounds cooler